Farm-harrow



. 3Sheets-Sheet 1. A. 0. STIVESON.

Farm-Harrow.

WITNESSES: INVENTO]? m wig Q Q2- /gyik 11 74 97 ATTORNEYJ 3Sheets--Sheet 2. A. O. STIVESON.

Farm-Harrow.

No. 226,563. PatentecLApril13,1880.

[N VENT 0R 3 Sheets-Sheet 3.

A. 0. STIVESON.

Farm-Harrow;

No. 226,563. Patented ApriHB, 1880. I

WITNESSES [N VE N TOR m 0 T T A NPET RS. PHDTO Ll'l WASHINGYON. D 6V VUNITED STATES PATENT OFFICE.

ANTHONY O. STIVES ON, OF APOLLO, PENNSYLVANIA.

FARM-HARROW.

SPECIFICATION forming part of Letters Patent No. 226,563, dated April13, 1880,

Application filed January 24, 1880. i

To all whom 'Lt may concern:

Be it known that I, ANTHONY O. STIVE- SON, of Apollo, Pennsylvania, haveinvented a new and useful Farm-Harrow, of which th following is aspecification.

My invention relates to farm-barrows in which the parts are capable ofadjustment so as to form harrows of several different shapes, and itcarries in its center revolving arms, in which are placed teeth whichperform the operation of harrowing or pulverizing the ground, while atthe same time they level the surface of the soil over which the harrowis dragged.

The outer rim of the square is jointed in such a manner as that theparts may be turned and form what is known as the double-A harrow. Byremoving these several detachable parts and reversing the harrow a goodcorn-marker is made by means of the guards or staples, one each on threeseveral corners.

In the accompanying drawings, Figure 1 is a top view of the harrow withall the parts complete; Fig. 2, the same view with the detachableportion of the outer frame removed; Fig. 3, the same view with the-outer frame complete, but having the revolving center removed; Fig. at,the same with both the detachable portion of the frame and the revolvingcenter taken away. Fig. 5 is the revolving center. Fig. 6 shows thesquare frame placed in the form of a double A harrow. Fig. 7 is a sideelevation, showing the guards or staples used as corn-markers.

Similar letters refer to the same parts in all the views.

A indicates the permanent portions of the square frame, which form twowhole sides and parts of the two other sides, which short parts haveone-half of the beveled joint a upon them.

B is the detachable portion, bearing correspending beveled joints to,and fits into the frame A, whether the harrow is in shape square or adouble A. These bevel-joints are preferably of metal, and have holes 0through both the permanent and detachable portions of the frame, throughwhich pins are run to bind the parts together. When the frame is throwntogether to mak the double-A harrow the detachable portion is hooked orotherwise fastened to the permanent portion at the front of the harrow.A cross-tree, c c, is placed on top of the harrow and fastened to thethree corners of the permanent portion of the frame. To each end of thisis attached a clip, to which the power is fastened. Rising over each ofthe corners, also, is the inclined guard or staple S, which serve todraw the furrows when the implement is used as a corn-marker..

Three furrows will be drawn equidistant by the three guards when theharrow is in verted.

O is the revolving cutter, which has as many arms as may be desired, andis attached, by means of a pivot or axis, to the cross-tree at thejuncture 0".

To do thorough harrowing I use the whol implement, the pulverizing ofthe earth being done by the frame and revolving center jointly, whilethe revolving center at the same time levels the surface.

The harrow may be made a double A by removing the revolving center andreversing the detachable portion of the frame and turning it into thepermanent portion, as shown in Fig. 6.

A very light harrow may be secured by removing both the revolving centerand detachable portion of the frame and using only the permanent portionof the frame. w

The harrow may again be lightened, and still be used to level thesurface of the ground,

by removing only the detachable portion of the frame and using thepermanent portion with the revolving center.

When it is desired to use it as a cornmarker the detachable portion ofthe frame and the revolving center are removed and the harrow isinverted.

The several clips are used in order that the power maybe attached at anyother point when one should break.

What I claim is 1. The herein-described convertible harrow, consistingof the permanent frame A, of triangular form, in combination with theremovable frame B, held to the permanent frame by means of pins andholes, as described, and

the revolving center, all arranged as described, and for the purposesset forth.

2. The herein-described convertible harrow and marker, consisting of thepermanent triangular frame A, provided on every corner with the staplesS, the removable frame B, held to the permanent frame by means of holesand pins, as described, and the removable revolving center 0, whereby asquare, triangular, or double-A harroW, or a square or t-ri- 1o angularharrow with a revolving" center, or a corn-marker, may be formed,substantially as set forth.

A. O. STIVESON.

Witnesses:

JOHN E. DUFFY, O. D. LEVIS.

